.nav_bar{
    display: flex;
    flex-direction: row;
    position:fixed;
    bottom:0;
    width:100%;
    height:0.8rem;
}
.nav_bar a{
    flex:1;
    text-align: center;
}
.home{
    background:url('../images/footer_nav_home.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}
.home_active{
    background:url('../images/footer_nav_home_active.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}
.my{
    background:url('../images/footer_nav_my.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}
.my_active{
    background:url('../images/footer_nav_my_active.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}
.shoppingCart{
    background:url('../images/footer_nav_shoppingcart.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}
.shoppingCart_active{
    background:url('../images/footer_nav_shoppingcart_active.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}
.station{
    background:url('../images/footer_nav_station.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}
.station_active{
    background:url('../images/footer_nav_station_active.png') no-repeat center;
    -webkit-background-size:0.48rem;
    background-size:0.48rem;
}